Feature Engineering for Drug Name Recognition in Biomedical Texts: Feature Conjunction and Feature Selection

Table 3

Experimental results of the DNR systems on the DDIExtraction 2013 corpus under strict matching criterion (%).

Feature	Feature number
	43935	84.75	72.89	78.37
+	294782	86.64	71.87	78.57
	117913	88.37	72.01	79.36